So basically, I was doing my AP Physics 1 homework and came across the spinning ice skater question yet again.
The question states, "An ice skater is spinning about a vertical axis with arms fully extended. If the arms are pulled in closer to the body, in which of the following ways are the...
I think that might work, but you could check to see if there's one that your topic would fit under better. Did you get to pick what your topic went under or were there options and you had to chose which one fit best?
I did some research online and found a statement that said that energy, which was represented by Q = -Δm(c^2), is equivalent to mass. So I'm guess that's why the mass can be reduced, because the total energy was less. Forgive me if I'm wrong, I'm taking AP Physics 1 which doesn't really cover...